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Is a Ford truck truely a four wheel drive when you can order without locking rear axle?
the only other option is regular axle from my understanding
Yes? All 4 wheels are capable of being driven. Nearly every vehicle that says 4x4 or AWD is only driving one wheel per pair with full power. They can use tricks to add simulated limited slip by braking the wheel with less traction. A small number of vehicles have true locking rear differentials, and an even shorter list have locking front differentials. But all that aside, the fact remains that the F-150 4x4 can send power to all four wheels, just not always equal power at the same time. So it fits the 4x4 qualifier, even without any locker.
Yes? All 4 wheels are capable of being driven. Nearly every vehicle that says 4x4 or AWD is only driving one wheel per pair with full power. They can use tricks to add simulated limited slip by braking the wheel with less traction. A small number of vehicles have true locking rear differentials, and an even shorter list have locking front differentials. But all that aside, the fact remains that the F-150 4x4 can send power to all four wheels, just not always equal power at the same time. So it fits the 4x4 qualifier, even without any locker.
Vulnox is right. But it depends how you look at it. I think in terms of best case (dry, pavement) and possible worst cases (mud, snow, 1 or more wheels off-pavement, crap all-season tires, etc). Considering just F-150's from the factory (not counting any aftermarket locking front diff. mods you can do), here's how I look at it:
Of course even with 4wd and front/rear locking diffs you can still manage to get stuck with crap tires.
Just traction control limited slip, so braking the spinning wheel. Some models have a limited slip front axle. Some F-150 adjacent vehicles like the Expedition have an eLSD. Most F-150s on the road though are either open dif or E-Locker.
Vulnox is right. But it depends how you look at it. I think in terms of best case (dry, pavement) and possible worst cases (mud, snow, 1 or more wheels off-pavement, crap all-season tires, etc). Considering just F-150's from the factory (not counting any aftermarket locking front diff. mods you can do), here's how I look at it:
Of course even with 4wd and front/rear locking diffs you can still manage to get stuck with crap tires.
I would argue the open diff front and rear is the only true 4wd. Each wheel on each axle gets the same torque as the other all the time, whereas the wheels on locking differentials don't.
I believe a Raptor is available with a Torsen front diff.
GM had the thing called posi traction. Ford called theirs limited slip. That stuff all went away with computers and anti skid crap. So in Ford pickups you have the rear locker which locks the diff. The std front has locking hubs but the differential is still not limited slip or elock. Then you can buy customer if you want to pull out tree stumps.
I would argue the open diff front and rear is the only true 4wd. Each wheel on each axle gets the same torque as the other all the time, whereas the wheels on locking differentials don't.
Three wheel drive?
